Calculator: TI84 Press 2ND vars, then scroll to binompdf(, press enter use the number of trials as 5, and the value of p as 0.527, and x values as 0,1,2,3,4,5 p(0) = binompdf(5,0.527,0) = 0.0236758568 p(1) = binompdf(5,0.527,1) = 0.1318940434 p(2) = binompdf(5,0.527,2) = 0.2939034287 p(3) = binompdf(5,0.527,3) = 0.3274568857 p(4) = binompdf(5,0.527,4) = 0.1824204849 p(5) = binompdf(5,0.527,5) = 0.0406493005 ----------------------------------------- sum = 1.0000000000 Edwin